Method of making building bricks



Patented Mar. 15, 1932 e3;

HUMBERT M. rnnarr, or NEW cAs'r n, PENNSYLVANIA,

METHOD OF MAKING B'U'ILDIN G BRICKS I Application filed January 22,1930. Serial No. 422,586.

My invention refers to the art of brick making and consists of animprovement in the method of making a rough face or tapestried brick.

The invention provides for the application to the surface or surfaces ofthe extruded clay column of a continuous brick machine, of a series ofcurved plowed lines or gutters, regularly spaced across the surface ofthe column i9 and of the resulting brick units.

In the drawings, showing the invention somewhat diagrammatically:

Fig. ,1 is a perspective view illustrating the manner of imparting thedesired surface lines or grooves;

Fig. 2 is a similar view of one of the resulting bricks after severancefrom the column; Fig. 3 is a view of the operation in side elevation;

Fig. 4 is a plan view of Fig. 3; Fig. 5 is an end view of a severedbrick; Fig. 6 is a plan view of such brick. In the manufacture of bricksand the like, a continuous column or bar 2 of plastic clay is forcedoutwardly from the discharge nozzle 3 of a brick machine, of well knownconstruction.

For the purpose of imparting a series of curving part circular scoremarks 4: of ragged outline and gutter or groove form, I utilize arotatable disk 5 suitably mounted by a driving shaft above the topsurface of the column or blank 2 and inclined to the surface thereof, asin Fig. 3. The lower side of disk 5 is provided with a series of annularspikes or pins 6 spaced radially in a plurality of series from the outeredge of the disk inwardly, as shown.

As the blank or bar 2 moves outwardly, the

40 wheel 5 is rotated, pins 6 sweeping around over and through the uppersurface of the clay column, forming the continuous series of ragged,rough edge, irregular but regularly spaced curved lines or score marks4.

One or both edges of bar 2 may be treated in the same manner by means ofa similar disk 5a having similar pins 6a, the disk being similarlytilted or inclined to the surface of the bar, so that the pins engageonly at the side where the disk is closest to the bar 2. By

the other edge.

such arrangement the pins beyond thecenter of either disk are elevatedbeyond the surface of the bar and do not cut into it, except at theother or lowered side of the disk.

The effect of such treatment is to impart a continuous series of suchcurbed score marks across the face or faces of the bar, increasingin'depth towards the middle thereof and decreasing in depth from themiddle towards When it is cut or severed into the brick units, as bywire cutting, each severed brick is covered on its edge or end or endswith such plowed marks '4, as shown in Fig. 2. When v the bricks areburned in the usual Way, the curved score marks give to the faces of thebrick an attractive or ornamental appearance, greatly enhancing itsValue in an artistic and novel manner.

It will be understood that the rotatable disks may be mounted by theirdrive shafts so as to be adjusted towards or from the surface of the baror with variation of inclination, and otherwise provided with suitabledriving gearing and other necessary mechanism, in order to effect theoperation to the best advantage.

The speed of operation, spacing of the pins, number of annular rows, andother details of operative mechanism may be entirely within the controlof the machine builder, and it will be understood that I do not limitthe invention to any particular means for accomplishing the result. YWhat I claim'is 1. In the manufacture of bricks, the method of surfacingthe face of a moving bar of plastic clay consisting in plowing across itby annularly and vertically moving pins.

2. In the manufacture of bricks, the method of surfacing the face ofa'moving bar of plastic clay consisting in plowing across it byannularly and vertically moving pins moving in a non-parallel path.

3. In the manufacture of bricks, the meth- 0d of surfacing the face of amoving bar of plastic clay consisting in rotating a series of pins overand through the face of the bar at varying depth in a non-parallel path.

4. In the manufactureof bricks, the meth- 06. of surfacing the face of amoving bar of plastic clay consisting in rotating a series of scoringpins in an annular path at an incline to the face of the bar whereby thepins will score the bar at one side of their path of movement.

5. In the manufacture of bricks, the meth- 0d of surfacing the face of amoving bar of plastic clay consisting in plowing across it 10 at varyingdepths by annularly moving pins, and then severing the bar. into brickunits.

In. testimony whereof I hereunto aifix my signature. 1 HUMBERT M.FENATI. 5 v

